be an armchair strategist

• 纸上谈兵

be an armchair strategist的用法和样例：

例句

1. My father is a hopeless armchair quarterback.
   我爸爸是一个没救了的纸上谈兵的人。
2. The declaration may yet be whittled away to nothing.
   这项决议声明还不见得就完全是纸上谈兵。